ST STM32L4x6 User Manual

DocID024597 Rev 3 983/1693
RM0351 General-purpose timers (TIM15/16/17)
1009
28.5.16 TIM15 DMA control register (TIM15_DCR)
Address offset: 0x48
Reset value: 0x0000
28.5.17 TIM15 DMA address for full transfer (TIM15_DMAR)
Address offset: 0x4C
Reset value: 0x0000
Bits 7:0 DTG[7:0]: Dead-time generator setup
This bit-field defines the duration of the dead-time inserted between the complementary
outputs. DT correspond to this duration.
DTG[7:5]=0xx => DT=DTG[7:0]x t
dtg
with t
dtg
=t
DTS
DTG[7:5]=10x => DT=(64+DTG[5:0])xt
dtg
with T
dtg
=2xt
DTS
DTG[7:5]=110 => DT=(32+DTG[4:0])xt
dtg
with T
dtg
=8xt
DTS
DTG[7:5]=111 => DT=(32+DTG[4:0])xt
dtg
with T
dtg
=16xt
DTS
Example if T
DTS
=125ns (8MHz), dead-time possible values are:
0 to 15875 ns by 125 ns steps,
16 µs to 31750 ns by 250 ns steps,
32 µs to 63 µs by 1 µs steps,
64 µs to 126 µs by 2 µs steps
Note: This bit-field can not be modified as long as LOCK level 1, 2 or 3 has been programmed
(LOCK bits in TIMx_BDTR register).
1514131211109876543210
Res Res Res DBL[4:0] Res Res Res DBA[4:0]
rw rw rw rw rw rw rw rw rw rw
Bits 15:13 Reserved, must be kept at reset value.
Bits 12:8 DBL[4:0]: DMA burst length
This 5-bit field defines the length of DMA transfers (the timer recognizes a burst transfer when
a read or a write access is done to the TIMx_DMAR address).
00000: 1 transfer,
00001: 2 transfers,
00010: 3 transfers,
...
10001: 18 transfers.
Bits 7:5 Reserved, must be kept at reset value.
Bits 4:0 DBA[4:0]: DMA base address
This 5-bit field defines the base-address for DMA transfers (when read/write access are done
through the TIMx_DMAR address). DBA is defined as an offset starting from the address of
the TIMx_CR1 register.
Example:
00000: TIMx_CR1,
00001: TIMx_CR2,
00010: TIMx_SMCR,
...
1514131211109876543210
DMAB[15:0]
rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw

ST STM32L4x6 Specifications

General

Brand	ST
Model	STM32L4x6
Category	Microcontrollers
Language	English